有些地区虽然富含氮化合物，但浮游生物却很少。
Some areas, though rich in these nitrogen compounds, have few plankton.
浮游生物通常在海洋表面附近某些含氮化合物浓度足够高的区域大量繁殖，而海洋表面正是浮游生物生存的地方。
Plankton generally thrive in areas of the ocean with sufficient concentrations of certain nitrogen compounds near the surface, where plankton live.
卤素原子同氮化合物一样，作为净化剂。
The halogen atoms play the same scavenging role as nitrogen compounds.
综述了酰基叠氮化合物在有机合成中的应用。
Its applications as an organic intermediate in organic synthesis are reviewed.
调制后烟叶的总糖含量下降，含氮化合物增加。
The contents of total sugar decreased and nitrogenous substance increased.
含氮化合物如尿的主要组成成分尿素则经过几步被转化。
Nitrogen compounds, like urea, a big component of urine, are transformed over several steps.
对称重氮化合物，含有它们的组合物，染色方法和设备。
Symmetrical diazo compounds, compositions comprising them, method of coloring, and device.
首选季铵盐阳离子螯合剂的氮化合物，包括中型或长链烷基。
Preferred cationic sequestrants are quaternary nitrogen compounds including medium or long chain alkyl groups.
烟叶钾含量增加，含氮化合物下降，刺激性减小，香气增加。
Potassium content increased in tobacco leaf, the nitrogenous substances decreased, irritancy reduced and aroma increased.
经磷钼酸和碘化铋钾薄层显色表明抗生素粗品中有含氮化合物。
TLC spray reagents of phosphorus molybdenum acid and bismuth potassium iodide indicated that it maybe contained the composition of alkaloids.
石油生产商们正在寻找更有效的办法从石油产品中清除硫氮化合物。
Oil producers are searching for more efficient ways to strip sulphur and nitrogen from their products.
土壤及海洋中的细菌分解含氮化合物时，也天然地产生这种气体。
The gas is also produced naturally when bacteria in the soil and oceans break down nitrogen-containing compounds.
合成一种新的推拉型偶氮化合物并将掺入pmma中制成光学薄膜器件。
The new push-pull azobenzene compound was synthesized and doped into PMMA films.
介绍了由醛、酰肼、羧酸、酰氯、酐或酯合成酰基叠氮化合物方法。
Synthesis of acyl azide from aldehyde, or acylhydrazine, or carboxylic acid , or acyl chloride, or anhydride, or ester is introduced in this paper.
利用水培研究了氮素水平对冬小麦分蘖期某些含氮化合物及生物量的影响。
Water culture experiment was carried out with winter wheat at the tillering stage to study the influence of nitrogen level on some nitrogenous substances and biomass of wheat.
异养细菌可以吃掉未处理污水当中的大部分碳基物质；而自养细菌则会消耗掉氨氮化合物。
Heterotrophic bacteria eat most of the carbon-based materials in raw sewage while autotrophic bacteria consume ammonia and nitrogen compounds.
叠氮化合物和膦硫酯的无痕施陶丁格连接反应是一种有效生成酰胺键的方法。
The traceless Staudinger ligation of azides and phosphines is an effective method to produce an amide bond.
报道了几种由5-氨基苯并咪唑酮为原料与酚偶联形成的偶氮化合物的合成。
In this paper, the synthesis of several azo compounds from diazotized 5 - aminobenzimidazolone and several phenols are studied.
选择该经活化的含氮化合物以及非氧化杀生物剂的用量以获得协同杀生物作用。
The amount of activated nitrogenous compound and non-oxidizing biocide is selected to result in a synergistic biocidal effect.
结果表明，原油中含氮化合物的分布和组成特征较好地指示了该区的油气运移效应。
The results showed that the distribution and composition characteristics can indicate oil fractionation effects.
特殊阳离子重氮化合物，含其作为直接染料的组合物，角蛋白纤维染色方法及其装置。
Cationic diazo compounds, compositions comprising them as direct dye, process for dyeing keratin fibers and device therefor.
最近，在伊朗发现了一种在原油中自然生长的真菌，可清除石油中导致酸雨和空气污染的硫氮化合物。
The fungus, recently discovered in Iran, grows naturally in crude oil and removes the sulphur and nitrogen compounds that lead to acid rain and air pollution.
应用石油含氮化合物分布研究石油运移是目前国内外有机地球化学研究领域的一个新方向。
It is a novel studied field in organic geochemistry using amount and distribution of nitrogen compounds in crude oils to study petroleum migration.
K326生长期间进行打顶和未打顶处理，研究鲜烟叶片蛋白酶及含氮化合物的变化规律。
Disposing with topping and not topping in K326 growth duration, researching the change law of protease and nitrogen compound in fresh tobacco leaves.
介绍了在载体固相反应中常用的固相载体以及多氮化合物的载体固相合成。参考文献10篇。
Some solid-phase supporters used for solid-phase synthesis in supporter and the synthesis of multi-nitrogen compounds were introduced with 10 references.
黄水中含有大量的含氮化合物、 还原糖及醇、醛、酸、酯等香味物质以及有益微生物菌群。
Yellow water contains large amount of nitrogen compounds, reducing sugar, alcohols, aldehyde, acids, esters, flavoring substances and some beneficial microflora.
回顾了硝基芳香化合物和偶氮化合物在厌氧条件下的生物脱毒、转化和矿化作用的研究成果。
These former papers show that nitroaromatics and azo dyes are strong electron attracting, which make them difficult to be biodegraded in aerobic conditions.
摘要：芳香偶氮化合物广泛应用于有机染料、生物医药、食品添加剂、自由基诱发剂等领域。
Abstract: Aromatic azo compounds are widely used as organic dyes, biological medicines, food additives, radical initiators and so on.
研究甲胺磷(map)的水解等反应的生成物亚硝酸与8羟基喹啉合成的偶氮化合物的极谱行为。
The polarographic behaviour of an azo compound produced by the reaction of Methy amine phosphorus (MAP) with 8 hydroxyquinoline (Oxin), in the ammonia medium has been studied.
研究甲胺磷(map)的水解等反应的生成物亚硝酸与8羟基喹啉合成的偶氮化合物的极谱行为。
The polarographic behaviour of an azo compound produced by the reaction of Methy amine phosphorus (MAP) with 8 hydroxyquinoline (Oxin), in the ammonia medium has been studied.
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